CUI Devices AMT22 Modular Absolute Encoders

CUI Devices AMT22 Modular Absolute Encoders output 12- or 14-bit absolute position information with full-duplex serial peripheral interface (SPI) communication and include single-turn or multi-turn output options. These encoders feature a 2MHz date rate and a compact modular package with a locking hub for easy installation. A capacitive platform ensures that these high-accuracy encoders offer protection from dirt, dust, and oil. CUI Devices AMT22 Modular Absolute Encoders are ideal for industrial automation, robotics, and renewable energy applications. 


  • Patented capacitive ASIC technology
  • Low power consumption
  • Full-duplex SP)
  • 12- or 14-bit absolute position
  • Single-turn or multi-turn output options
  • Compact modular package with a locking hub for ease of installation
  • Digitally settable zero position
  • Checksum bits for error detection
  • Radial and axial cable connectors
  • Configuration and firmware updates via AMT Viewpoint™ software
  • RoHS compliant


  • Industrial automation
  • Robotics
  • Renewable energy


  • 3.8V to 5.5V power supply range
  • 200ms typical start-up time
  • 16mA typical current consumption
  • Input
    • 0.8V maximum, low level
    • 2.0V to 5.5V, high level
  • Output
    • 0.8V maximum, low level
    • 3.3V typical, high level
  • Absolute position characteristics
    • 12- or 14-bit resolution
    • 0.2° accuracy
    • Absolute zero position is settable via AMT Viewpoint GUI or SPI command
    • Absolute position update rate
      • 25µs for 12-bit
      • 100µs for 14-bit
  • 9mm minimum shaft length
  • ±0.3mm axial play
  • Rotational speed
    • 8,000RPM for 12-bit position resolution
    • 4,000RPM for 14-bit position resolution
  • -40°C to +105°C operating temperature range
  • 85% humidity, non-condensing
  • 5G vibration rating
  • 200G shock rating
  • Serial interface
    • 8-bit typical frame size
    • 2MHz maximum data rate
    • Serial Peripheral Interface Mode 0 protocol
  • Kits include
    • 9 sleeves ranging from 2mm to 8mm in a variety of colors
    • Tools A and C
    • Base and wide base
    • Top cover
    • Shaft adapter
Publicado: 2019-01-10 | Actualizado: 2023-09-05